FOUR BAND PARAMETRIC EQUALIZER
•
ON
: Depressing the EQ pushbutton illuminates the red 'on' LED and puts the parametric equalizer
into the signal path. Each of the four bands of the equalizer has three controls:
•
FREQUENCY
: The Frequency control (left hand side) sets the center frequency the band acts on.
The frequency ranges are:
LO: 35 - 400 Hz HI - MID: 800 - 8800 Hz
LO - MID: 180 - 2000 Hz HI: 1.5 - 16.0 kHz
•
BANDWIDTH
: The Bandwidth control (center) sets how wide or narrow a range of frequencies
around the center frequency is acted on. The range of adjustment is:
LO: 0.10 - 1.0 octave
LO-MID, HI-MID and HI: 0.33 - 1.0 octave
•
LEVEL
: The Level control (right hand side) sets the amount of boost or cut (± 15 db maximum) that
is applied at the center frequency.
EFFECTS
•
EFFECT LEVEL
: The EFFECTS level controls (L and R) are used to set the level of the stereo
effects return inputs. The return inputs are capable of up to 20 db of gain to interface with all types of
effects. The unity gain position is 11:00.
•
EFFECTS ON
: The inputs are activated when an effect is plugged into either return input on the
rear panel, or switched on by the foot switch. The red LED to the upper left of each control indicates
the input is active. The inputs are only active if the Instrument ON switch is also depressed.
OUTPUT (L/R)
•
The
OUTPUT(L/R)
dual control adjusts the Main Preamp Unit's outputs to the level required by the
amplifier, sound reinforcement system, or recording console it is used with:
2:00 for professional (+4 dbu) equipment
11:00 for semi-pro (-10dbV) equipment
<11:00 for instrument-level inputs.
Rear Panel Controls
INPUTS
•
PREAMP MODULE
: The Preamp Module input is a phantom powered (+48Vdc) balanced-line
input for the preamp module. This input should ONLY be used with the preamp module, or other
sources equipped to use the phantom voltage.
•
LINE
: The Line input is a convenient accessory input that accepts either unbalanced or TRS
balanced line signals. The line input allows the Main Preamp Unit to be used as a stand-alone